Underlying Causes of TIA and Minor Ischemic Stroke and Risk of Major Vascular Events

Author:

Lavallée Philippa C.1,Charles Hugo1,Albers Gregory W.2,Caplan Louis R.3,Donnan Geoffrey A.4,Ferro José M.5,Hennerici Michael G.6,Labreuche Julien17,Molina Carlos8,Rothwell Peter M.9,Steg Philippe Gabriel10,Touboul Pierre-Jean1,Uchiyama Shinichiro11,Vicaut Éric12,Wong Lawrence K. S.13,Amarenco Pierre114,Ameriso Sebastian15,Nora Gandolfo Claudia15,Povedano Guillermo15,Sagesse Javier15,Pavon Heman15,Cancino Jorge15,Toledo Walter15,Huang Yinin15,Gong Xiping15,Martin Yeato15,Mi Donghu15,Song Tian15,Wang Yilong15,Wang Yongjun15,Chandgfend Fran15,Contago Guo15,Hongyun Jiao15,Intao Heman15,Jixing Wu15,Liquing Song15,Liwen Tai15,Ran Liu15,Shujuan Tian15,Wenhong Liu15,Hong Soi Tak15,Wong Lawrence15,Roxanna Liu15,Flasar Roman15,Ziktova Bedriska15,Reif Michael15,Goldemund Daniel Sanak15,Neumann Jiri15,Svakov Dagmar15,Sanak Daniel15,Kral Michael15,Skoloudik David15,Vaclavik Daniel15,Kuhila Martin15,Amarenco Pierre15,Cabrejo Lucie15,Guidoux Céline15,Hobeanu Cristina Maria15,Lavallée Philippa15,Meseguer Elena15,Audebert Henrich15,Menger Daniel15,Heide Wofgang15,Lipp Saskia15,Ozalp Huriye15,Sctzmann Christine15,Weimar Christian15,Platzbecker Katharina15,Ringleb Peter15,Hennerici Michel G15,Griebe Martin15,Knoll Olaf Katrin15,Willmann Olaf15,Harmut Faiss Juergen15,Dilan Susan15,Kobersteein Anja15,Krimmer Katarina15,Tietz Sandra15,Wienecke Peter15,Hamann Gerhard15,Burkhardt Nico15,Liebetrau Martin15,Mueller Nadine15,Wagner Michaela15,Strivastava Dr15,Kelly Peter15,Tanne Hashomer David15,Cavazzuti Milena15,Anticoli Sabrina15,Toni Danilo15,Nagata Ken15,Okada Yasushi15,Yamagami Hiroshi15,Minematsu Kazuo15,Nakagawara Jojo15,Uchiyama Shinchiro15,Chui Lee Byung15,Woo Yoon Byung15,Hoe Ji15,Moo Park Jong15,Abboud Halim15,Koussa Salam15,Awada Adnan15,Sin Tan Kay15,Arauz Antonio15,Gongora Frnando15,Valenzuela Adrian Infante15,Esamilla Juan M.15,Canhao Patricia15,Ferro ******-15,Fonseca Ana Catarina15,Correia Manuel15,Tuna Assuncao15,Sternic Nada15,Mijajlovic Milija15,Dupejova Beata15,Szedelyova Jana15,Smirkova Renata15,Segura Tomas15,Molina Carlos15,Rodriguez Ana15,Silva Yolanda15,Tejada Javier15,Purroy Francisco15,Masjuan Jaime15,Vivancos Jose15,Palomeras Ernest15,Gamemro Miguel Angel15,Arenillas JF15,Calleja Anna15,Rojo Esther15,Buchan Alastair15,Rothwell Peter15,Hai Lee Tsong15,Chang Ku Chou15,Huang Yu-Ching15,Lin Ruey-Tay15,Timkao Somsak15,

Affiliation:

1. Department of Neurology and Stroke Center, Bichat Hospital, Assistance Publique–Hôpitaux de Paris (AP-HP), Institut National de la Santé et de la Recherche Médicale (INSERM) Laboratory for Vascular Translational Science (LVTS)–U1148, University Paris-Cité, Paris, France

2. Department of Neurology and Neurological Sciences, Stanford Stroke Center, Stanford University Medical Center, Stanford, California

3. Cerebrovascular Disease Service, Beth Israel Deaconess Medical Center, Harvard University, Boston, Massachusetts

4. Melbourne Brain Centre, Royal Melbourne Hospital, The University of Melbourne, Parkville, Australia

5. Instituto de Medicina Molecular João Lobo Antunes, Universidade de Lisboa, Lisbon, Portugal

6. Department of Neurology, Universitäts Medizin Mannheim, University of Heidelberg, Heidelberg, Germany

7. Department of Biostatistics, Centre Hospitalier Universitaire Lille, Lille, France

8. Stroke Unit, Department of Neurology, Vall d’Hebron University Hospital, Universitat Autonoma de Barcelona, Barcelona, Spain

9. Wolfson Centre for Prevention of Stroke and Dementia, Nuffield Department of Clinical Neuroscience, University of Oxford, Oxford, United Kingdom

10. Department of Cardiology, Hôpital Bichat, Université Paris Cité, AP-HP, INSERM LVTS-U1148, Institut Universitaire de France, Paris, France

11. Center for Brain and Cerebral Vessels, Sanno Hospital and Sanno Medical Center, International University of Health and Welfare, Tokyo, Japan

12. Department of Biostatistics, Fernand Widal Hospital, AP-HP, Université Paris-Cité, Paris, France

13. Department of Medicine & Therapeutics, Prince of Wales Hospital, Chinese University of Hong Kong, Hong Kong

14. Population Health Research Institute, McMaster University, Hamilton, Ontario, Canada

15. for the TIAregistry.org Investigators

Abstract

ImportanceThe coexistence of underlying causes in patients with transient ischemic attack (TIA) or minor ischemic stroke as well as their associated 5-year risks are not well known.ObjectiveTo apply the ASCOD (atherosclerosis, small vessel disease, cardiac pathology, other cause, or dissection) grading system to assess coexistence of underlying causes of TIA and minor ischemic stroke and the 5-year risk for major vascular events.Design, Setting, and ParticipantsThis international registry cohort (TIAregistry.org) study enrolled 4789 patients from June 1, 2009, to December 31, 2011, with 1- to 5-year follow-up at 61 sites in 21 countries. Eligible patients had a TIA or minor stroke (with modified Rankin Scale score of 0 or 1) within the last 7 days. Among these, 3847 patients completed the 5-year follow-up by December 31, 2016. Data were analyzed from October 1, 2022, to June 15, 2023.ExposureFive-year follow-up.Main Outcomes and MeasuresEstimated 5-year risk of the composite outcome of stroke, acute coronary syndrome, or cardiovascular death.ResultsA total of 3847 patients (mean [SD] age, 66.4 [13.2] years; 2295 men [59.7%]) in 42 sites were enrolled and participated in the 5-year follow-up cohort (median percentage of 5-year follow-up per center was 92.3% [IQR, 83.4%-97.8%]). In 998 patients with probable or possible causal atherosclerotic disease, 489 (49.0%) had some form of small vessel disease (SVD), including 110 (11.0%) in whom a lacunar stroke was also probably or possibly causal, and 504 (50.5%) had no SVD; 275 (27.6%) had some cardiac findings, including 225 (22.6%) in whom cardiac pathology was also probably or possibly causal, and 702 (70.3%) had no cardiac findings. Compared with patients with none of the 5 ASCOD categories of disease (n = 484), the 5-year rate of major vascular events was almost 5 times higher (hazard ratio [HR], 4.86 [95% CI, 3.07-7.72]; P < .001) in patients with causal atherosclerosis, 2.5 times higher (HR, 2.57 [95% CI, 1.58-4.20]; P < .001) in patients with causal lacunar stroke or lacunar syndrome, and 4 times higher (HR, 4.01 [95% CI, 2.50-6.44]; P < .001) in patients with causal cardiac pathology.Conclusion and RelevanceThe findings of this cohort study suggest that in patients with TIA and minor ischemic stroke, the coexistence of atherosclerosis, SVD, cardiac pathology, dissection, or other causes is substantial, and the 5-year risk of a major vascular event varies considerably across the 5 categories of underlying diseases. These findings further suggest the need for secondary prevention strategies based on pathophysiology rather than a one-size-fits-all approach.

Publisher

American Medical Association (AMA)

Subject

Neurology (clinical)

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